aac.c revision 117362
1/*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: head/sys/dev/aac/aac.c 117362 2003-07-09 19:30:30Z scottl $ 30 */ 31 32/* 33 * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. 34 */ 35 36#include "opt_aac.h" 37 38/* #include <stddef.h> */ 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/malloc.h> 42#include <sys/kernel.h> 43#include <sys/kthread.h> 44#include <sys/sysctl.h> 45#include <sys/poll.h> 46#include <sys/ioccom.h> 47 48#include <sys/bus.h> 49#include <sys/conf.h> 50#include <sys/signalvar.h> 51#include <sys/time.h> 52#include <sys/eventhandler.h> 53 54#include <machine/bus_memio.h> 55#include <machine/bus.h> 56#include <machine/resource.h> 57 58#include <dev/aac/aacreg.h> 59#include <dev/aac/aac_ioctl.h> 60#include <dev/aac/aacvar.h> 61#include <dev/aac/aac_tables.h> 62 63static void aac_startup(void *arg); 64static void aac_add_container(struct aac_softc *sc, 65 struct aac_mntinforesp *mir, int f); 66static void aac_get_bus_info(struct aac_softc *sc); 67 68/* Command Processing */ 69static void aac_timeout(struct aac_softc *sc); 70static int aac_start(struct aac_command *cm); 71static void aac_complete(void *context, int pending); 72static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 73static void aac_bio_complete(struct aac_command *cm); 74static int aac_wait_command(struct aac_command *cm, int timeout); 75static void aac_command_thread(struct aac_softc *sc); 76 77/* Command Buffer Management */ 78static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 79 int nseg, int error); 80static int aac_alloc_commands(struct aac_softc *sc); 81static void aac_free_commands(struct aac_softc *sc); 82static void aac_map_command(struct aac_command *cm); 83static void aac_unmap_command(struct aac_command *cm); 84 85/* Hardware Interface */ 86static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 87 int error); 88static int aac_check_firmware(struct aac_softc *sc); 89static int aac_init(struct aac_softc *sc); 90static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 91 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 92 u_int32_t arg3, u_int32_t *sp); 93static int aac_enqueue_fib(struct aac_softc *sc, int queue, 94 struct aac_command *cm); 95static int aac_dequeue_fib(struct aac_softc *sc, int queue, 96 u_int32_t *fib_size, struct aac_fib **fib_addr); 97static int aac_enqueue_response(struct aac_softc *sc, int queue, 98 struct aac_fib *fib); 99 100/* Falcon/PPC interface */ 101static int aac_fa_get_fwstatus(struct aac_softc *sc); 102static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 103static int aac_fa_get_istatus(struct aac_softc *sc); 104static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 105static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 106 u_int32_t arg0, u_int32_t arg1, 107 u_int32_t arg2, u_int32_t arg3); 108static int aac_fa_get_mailbox(struct aac_softc *sc, int mb); 109static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 110 111struct aac_interface aac_fa_interface = { 112 aac_fa_get_fwstatus, 113 aac_fa_qnotify, 114 aac_fa_get_istatus, 115 aac_fa_clear_istatus, 116 aac_fa_set_mailbox, 117 aac_fa_get_mailbox, 118 aac_fa_set_interrupts 119}; 120 121/* StrongARM interface */ 122static int aac_sa_get_fwstatus(struct aac_softc *sc); 123static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 124static int aac_sa_get_istatus(struct aac_softc *sc); 125static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 126static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 127 u_int32_t arg0, u_int32_t arg1, 128 u_int32_t arg2, u_int32_t arg3); 129static int aac_sa_get_mailbox(struct aac_softc *sc, int mb); 130static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 131 132struct aac_interface aac_sa_interface = { 133 aac_sa_get_fwstatus, 134 aac_sa_qnotify, 135 aac_sa_get_istatus, 136 aac_sa_clear_istatus, 137 aac_sa_set_mailbox, 138 aac_sa_get_mailbox, 139 aac_sa_set_interrupts 140}; 141 142/* i960Rx interface */ 143static int aac_rx_get_fwstatus(struct aac_softc *sc); 144static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 145static int aac_rx_get_istatus(struct aac_softc *sc); 146static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 147static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 148 u_int32_t arg0, u_int32_t arg1, 149 u_int32_t arg2, u_int32_t arg3); 150static int aac_rx_get_mailbox(struct aac_softc *sc, int mb); 151static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 152 153struct aac_interface aac_rx_interface = { 154 aac_rx_get_fwstatus, 155 aac_rx_qnotify, 156 aac_rx_get_istatus, 157 aac_rx_clear_istatus, 158 aac_rx_set_mailbox, 159 aac_rx_get_mailbox, 160 aac_rx_set_interrupts 161}; 162 163/* Debugging and Diagnostics */ 164static void aac_describe_controller(struct aac_softc *sc); 165static char *aac_describe_code(struct aac_code_lookup *table, 166 u_int32_t code); 167 168/* Management Interface */ 169static d_open_t aac_open; 170static d_close_t aac_close; 171static d_ioctl_t aac_ioctl; 172static d_poll_t aac_poll; 173static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 174static void aac_handle_aif(struct aac_softc *sc, 175 struct aac_fib *fib); 176static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 177static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 178static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 179static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 180 181#define AAC_CDEV_MAJOR 150 182 183static struct cdevsw aac_cdevsw = { 184 .d_open = aac_open, 185 .d_close = aac_close, 186 .d_ioctl = aac_ioctl, 187 .d_poll = aac_poll, 188 .d_name = "aac", 189 .d_maj = AAC_CDEV_MAJOR, 190}; 191 192MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 193 194/* sysctl node */ 195SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 196 197/* 198 * Device Interface 199 */ 200 201/* 202 * Initialise the controller and softc 203 */ 204int 205aac_attach(struct aac_softc *sc) 206{ 207 int error, unit; 208 209 debug_called(1); 210 211 /* 212 * Initialise per-controller queues. 213 */ 214 aac_initq_free(sc); 215 aac_initq_ready(sc); 216 aac_initq_busy(sc); 217 aac_initq_bio(sc); 218 219 /* 220 * Initialise command-completion task. 221 */ 222 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 223 224 /* disable interrupts before we enable anything */ 225 AAC_MASK_INTERRUPTS(sc); 226 227 /* mark controller as suspended until we get ourselves organised */ 228 sc->aac_state |= AAC_STATE_SUSPEND; 229 230 /* 231 * Check that the firmware on the card is supported. 232 */ 233 if ((error = aac_check_firmware(sc)) != 0) 234 return(error); 235 236 /* 237 * Initialize locks 238 */ 239 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 240 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 241 AAC_LOCK_INIT(&sc->aac_io_lock, "AAC I/O lock"); 242 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 243 TAILQ_INIT(&sc->aac_container_tqh); 244 245 246 /* 247 * Initialise the adapter. 248 */ 249 if ((error = aac_init(sc)) != 0) 250 return(error); 251 252 /* 253 * Print a little information about the controller. 254 */ 255 aac_describe_controller(sc); 256 257 /* 258 * Register to probe our containers later. 259 */ 260 sc->aac_ich.ich_func = aac_startup; 261 sc->aac_ich.ich_arg = sc; 262 if (config_intrhook_establish(&sc->aac_ich) != 0) { 263 device_printf(sc->aac_dev, 264 "can't establish configuration hook\n"); 265 return(ENXIO); 266 } 267 268 /* 269 * Make the control device. 270 */ 271 unit = device_get_unit(sc->aac_dev); 272 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 273 0640, "aac%d", unit); 274 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 275 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 276 sc->aac_dev_t->si_drv1 = sc; 277 278 /* Create the AIF thread */ 279 if (kthread_create((void(*)(void *))aac_command_thread, sc, 280 &sc->aifthread, 0, 0, "aac%daif", unit)) 281 panic("Could not create AIF thread\n"); 282 283 /* Register the shutdown method to only be called post-dump */ 284 if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, 285 sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) 286 device_printf(sc->aac_dev, 287 "shutdown event registration failed\n"); 288 289 /* Register with CAM for the non-DASD devices */ 290 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) { 291 TAILQ_INIT(&sc->aac_sim_tqh); 292 aac_get_bus_info(sc); 293 } 294 295 return(0); 296} 297 298/* 299 * Probe for containers, create disks. 300 */ 301static void 302aac_startup(void *arg) 303{ 304 struct aac_softc *sc; 305 struct aac_fib *fib; 306 struct aac_mntinfo *mi; 307 struct aac_mntinforesp *mir = NULL; 308 int count = 0, i = 0; 309 310 debug_called(1); 311 312 sc = (struct aac_softc *)arg; 313 314 /* disconnect ourselves from the intrhook chain */ 315 config_intrhook_disestablish(&sc->aac_ich); 316 317 aac_alloc_sync_fib(sc, &fib, 0); 318 mi = (struct aac_mntinfo *)&fib->data[0]; 319 320 /* loop over possible containers */ 321 do { 322 /* request information on this container */ 323 bzero(mi, sizeof(struct aac_mntinfo)); 324 mi->Command = VM_NameServe; 325 mi->MntType = FT_FILESYS; 326 mi->MntCount = i; 327 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 328 sizeof(struct aac_mntinfo))) { 329 printf("error probing container %d", i); 330 continue; 331 } 332 333 mir = (struct aac_mntinforesp *)&fib->data[0]; 334 /* XXX Need to check if count changed */ 335 count = mir->MntRespCount; 336 aac_add_container(sc, mir, 0); 337 i++; 338 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 339 340 aac_release_sync_fib(sc); 341 342 /* poke the bus to actually attach the child devices */ 343 if (bus_generic_attach(sc->aac_dev)) 344 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 345 346 /* mark the controller up */ 347 sc->aac_state &= ~AAC_STATE_SUSPEND; 348 349 /* enable interrupts now */ 350 AAC_UNMASK_INTERRUPTS(sc); 351} 352 353/* 354 * Create a device to respresent a new container 355 */ 356static void 357aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 358{ 359 struct aac_container *co; 360 device_t child; 361 362 /* 363 * Check container volume type for validity. Note that many of 364 * the possible types may never show up. 365 */ 366 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 367 co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, 368 M_NOWAIT | M_ZERO); 369 if (co == NULL) 370 panic("Out of memory?!\n"); 371 debug(1, "id %x name '%.16s' size %u type %d", 372 mir->MntTable[0].ObjectId, 373 mir->MntTable[0].FileSystemName, 374 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 375 376 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 377 device_printf(sc->aac_dev, "device_add_child failed\n"); 378 else 379 device_set_ivars(child, co); 380 device_set_desc(child, aac_describe_code(aac_container_types, 381 mir->MntTable[0].VolType)); 382 co->co_disk = child; 383 co->co_found = f; 384 bcopy(&mir->MntTable[0], &co->co_mntobj, 385 sizeof(struct aac_mntobj)); 386 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 387 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 388 AAC_LOCK_RELEASE(&sc->aac_container_lock); 389 } 390} 391 392/* 393 * Free all of the resources associated with (sc) 394 * 395 * Should not be called if the controller is active. 396 */ 397void 398aac_free(struct aac_softc *sc) 399{ 400 401 debug_called(1); 402 403 /* remove the control device */ 404 if (sc->aac_dev_t != NULL) 405 destroy_dev(sc->aac_dev_t); 406 407 /* throw away any FIB buffers, discard the FIB DMA tag */ 408 aac_free_commands(sc); 409 if (sc->aac_fib_dmat) 410 bus_dma_tag_destroy(sc->aac_fib_dmat); 411 412 free(sc->aac_commands, M_AACBUF); 413 414 /* destroy the common area */ 415 if (sc->aac_common) { 416 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 417 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 418 sc->aac_common_dmamap); 419 } 420 if (sc->aac_common_dmat) 421 bus_dma_tag_destroy(sc->aac_common_dmat); 422 423 /* disconnect the interrupt handler */ 424 if (sc->aac_intr) 425 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 426 if (sc->aac_irq != NULL) 427 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 428 sc->aac_irq); 429 430 /* destroy data-transfer DMA tag */ 431 if (sc->aac_buffer_dmat) 432 bus_dma_tag_destroy(sc->aac_buffer_dmat); 433 434 /* destroy the parent DMA tag */ 435 if (sc->aac_parent_dmat) 436 bus_dma_tag_destroy(sc->aac_parent_dmat); 437 438 /* release the register window mapping */ 439 if (sc->aac_regs_resource != NULL) 440 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 441 sc->aac_regs_rid, sc->aac_regs_resource); 442} 443 444/* 445 * Disconnect from the controller completely, in preparation for unload. 446 */ 447int 448aac_detach(device_t dev) 449{ 450 struct aac_softc *sc; 451 struct aac_container *co; 452 struct aac_sim *sim; 453 int error; 454 455 debug_called(1); 456 457 sc = device_get_softc(dev); 458 459 if (sc->aac_state & AAC_STATE_OPEN) 460 return(EBUSY); 461 462 /* Remove the child containers */ 463 while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { 464 error = device_delete_child(dev, co->co_disk); 465 if (error) 466 return (error); 467 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); 468 free(co, M_AACBUF); 469 } 470 471 /* Remove the CAM SIMs */ 472 while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { 473 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); 474 error = device_delete_child(dev, sim->sim_dev); 475 if (error) 476 return (error); 477 free(sim, M_AACBUF); 478 } 479 480 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 481 sc->aifflags |= AAC_AIFFLAGS_EXIT; 482 wakeup(sc->aifthread); 483 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 484 } 485 486 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 487 panic("Cannot shutdown AIF thread\n"); 488 489 if ((error = aac_shutdown(dev))) 490 return(error); 491 492 EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); 493 494 aac_free(sc); 495 496 return(0); 497} 498 499/* 500 * Bring the controller down to a dormant state and detach all child devices. 501 * 502 * This function is called before detach or system shutdown. 503 * 504 * Note that we can assume that the bioq on the controller is empty, as we won't 505 * allow shutdown if any device is open. 506 */ 507int 508aac_shutdown(device_t dev) 509{ 510 struct aac_softc *sc; 511 struct aac_fib *fib; 512 struct aac_close_command *cc; 513 514 debug_called(1); 515 516 sc = device_get_softc(dev); 517 518 sc->aac_state |= AAC_STATE_SUSPEND; 519 520 /* 521 * Send a Container shutdown followed by a HostShutdown FIB to the 522 * controller to convince it that we don't want to talk to it anymore. 523 * We've been closed and all I/O completed already 524 */ 525 device_printf(sc->aac_dev, "shutting down controller..."); 526 527 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 528 cc = (struct aac_close_command *)&fib->data[0]; 529 530 bzero(cc, sizeof(struct aac_close_command)); 531 cc->Command = VM_CloseAll; 532 cc->ContainerId = 0xffffffff; 533 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 534 sizeof(struct aac_close_command))) 535 printf("FAILED.\n"); 536 else 537 printf("done\n"); 538#if 0 539 else { 540 fib->data[0] = 0; 541 /* 542 * XXX Issuing this command to the controller makes it shut down 543 * but also keeps it from coming back up without a reset of the 544 * PCI bus. This is not desirable if you are just unloading the 545 * driver module with the intent to reload it later. 546 */ 547 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 548 fib, 1)) { 549 printf("FAILED.\n"); 550 } else { 551 printf("done.\n"); 552 } 553 } 554#endif 555 556 AAC_MASK_INTERRUPTS(sc); 557 558 return(0); 559} 560 561/* 562 * Bring the controller to a quiescent state, ready for system suspend. 563 */ 564int 565aac_suspend(device_t dev) 566{ 567 struct aac_softc *sc; 568 569 debug_called(1); 570 571 sc = device_get_softc(dev); 572 573 sc->aac_state |= AAC_STATE_SUSPEND; 574 575 AAC_MASK_INTERRUPTS(sc); 576 return(0); 577} 578 579/* 580 * Bring the controller back to a state ready for operation. 581 */ 582int 583aac_resume(device_t dev) 584{ 585 struct aac_softc *sc; 586 587 debug_called(1); 588 589 sc = device_get_softc(dev); 590 591 sc->aac_state &= ~AAC_STATE_SUSPEND; 592 AAC_UNMASK_INTERRUPTS(sc); 593 return(0); 594} 595 596/* 597 * Take an interrupt. 598 */ 599void 600aac_intr(void *arg) 601{ 602 struct aac_softc *sc; 603 u_int32_t *resp_queue; 604 u_int16_t reason; 605 606 debug_called(2); 607 608 sc = (struct aac_softc *)arg; 609 610 /* 611 * Optimize the common case of adapter response interrupts. 612 * We must read from the card prior to processing the responses 613 * to ensure the clear is flushed prior to accessing the queues. 614 * Reading the queues from local memory might save us a PCI read. 615 */ 616 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 617 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 618 reason = AAC_DB_RESPONSE_READY; 619 else 620 reason = AAC_GET_ISTATUS(sc); 621 AAC_CLEAR_ISTATUS(sc, reason); 622 (void)AAC_GET_ISTATUS(sc); 623 624 /* It's not ok to return here because of races with the previous step */ 625 if (reason & AAC_DB_RESPONSE_READY) 626 /* handle completion processing */ 627 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 628 629 /* controller wants to talk to the log */ 630 if (reason & AAC_DB_PRINTF) { 631 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 632 sc->aifflags |= AAC_AIFFLAGS_PRINTF; 633 } else 634 aac_print_printf(sc); 635 } 636 637 /* controller has a message for us? */ 638 if (reason & AAC_DB_COMMAND_READY) { 639 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 640 sc->aifflags |= AAC_AIFFLAGS_AIF; 641 } else { 642 /* 643 * XXX If the kthread is dead and we're at this point, 644 * there are bigger problems than just figuring out 645 * what to do with an AIF. 646 */ 647 } 648 649 } 650 651 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) != 0) 652 /* XXX Should this be done with cv_signal? */ 653 wakeup(sc->aifthread); 654} 655 656/* 657 * Command Processing 658 */ 659 660/* 661 * Start as much queued I/O as possible on the controller 662 */ 663void 664aac_startio(struct aac_softc *sc) 665{ 666 struct aac_command *cm; 667 668 debug_called(2); 669 670 for (;;) { 671 /* 672 * Try to get a command that's been put off for lack of 673 * resources 674 */ 675 cm = aac_dequeue_ready(sc); 676 677 /* 678 * Try to build a command off the bio queue (ignore error 679 * return) 680 */ 681 if (cm == NULL) 682 aac_bio_command(sc, &cm); 683 684 /* nothing to do? */ 685 if (cm == NULL) 686 break; 687 688 /* try to give the command to the controller */ 689 if (aac_start(cm) == EBUSY) { 690 /* put it on the ready queue for later */ 691 aac_requeue_ready(cm); 692 break; 693 } 694 } 695} 696 697/* 698 * Deliver a command to the controller; allocate controller resources at the 699 * last moment when possible. 700 */ 701static int 702aac_start(struct aac_command *cm) 703{ 704 struct aac_softc *sc; 705 int error; 706 707 debug_called(2); 708 709 sc = cm->cm_sc; 710 711 /* get the command mapped */ 712 aac_map_command(cm); 713 714 /* Fix up the address values in the FIB. Use the command array index 715 * instead of a pointer since these fields are only 32 bits. Shift 716 * the SenderFibAddress over to make room for the fast response bit. 717 */ 718 cm->cm_fib->Header.SenderFibAddress = (cm->cm_index << 1); 719 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 720 721 /* save a pointer to the command for speedy reverse-lookup */ 722 cm->cm_fib->Header.SenderData = cm->cm_index; 723 /* put the FIB on the outbound queue */ 724 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 725 return(error); 726} 727 728/* 729 * Handle notification of one or more FIBs coming from the controller. 730 */ 731static void 732aac_command_thread(struct aac_softc *sc) 733{ 734 struct aac_fib *fib; 735 u_int32_t fib_size; 736 int size; 737 738 debug_called(2); 739 740 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 741 742 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 743 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 744 tsleep(sc->aifthread, PRIBIO, "aifthd", 745 AAC_PERIODIC_INTERVAL * hz); 746 747 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 748 aac_timeout(sc); 749 750 /* Check the hardware printf message buffer */ 751 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 752 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 753 aac_print_printf(sc); 754 } 755 756 /* See if any FIBs need to be allocated */ 757 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) { 758 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 759 aac_alloc_commands(sc); 760 sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS; 761 AAC_LOCK_RELEASE(&sc->aac_io_lock); 762 } 763 764 /* While we're here, check to see if any commands are stuck */ 765 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 766 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 767 &fib_size, &fib)) { 768 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 769 break; /* nothing to do */ 770 } 771 772 AAC_PRINT_FIB(sc, fib); 773 774 switch (fib->Header.Command) { 775 case AifRequest: 776 aac_handle_aif(sc, fib); 777 break; 778 default: 779 device_printf(sc->aac_dev, "unknown command " 780 "from controller\n"); 781 break; 782 } 783 784 if ((fib->Header.XferState == 0) || 785 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 786 break; 787 788 /* Return the AIF to the controller. */ 789 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 790 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 791 *(AAC_FSAStatus*)fib->data = ST_OK; 792 793 /* XXX Compute the Size field? */ 794 size = fib->Header.Size; 795 if (size > sizeof(struct aac_fib)) { 796 size = sizeof(struct aac_fib); 797 fib->Header.Size = size; 798 } 799 /* 800 * Since we did not generate this command, it 801 * cannot go through the normal 802 * enqueue->startio chain. 803 */ 804 aac_enqueue_response(sc, 805 AAC_ADAP_NORM_RESP_QUEUE, 806 fib); 807 } 808 } 809 } 810 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 811 wakeup(sc->aac_dev); 812 813 mtx_lock(&Giant); 814 kthread_exit(0); 815} 816 817/* 818 * Process completed commands. 819 */ 820static void 821aac_complete(void *context, int pending) 822{ 823 struct aac_softc *sc; 824 struct aac_command *cm; 825 struct aac_fib *fib; 826 u_int32_t fib_size; 827 828 debug_called(2); 829 830 sc = (struct aac_softc *)context; 831 832 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 833 834 /* pull completed commands off the queue */ 835 for (;;) { 836 /* look for completed FIBs on our queue */ 837 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 838 &fib)) 839 break; /* nothing to do */ 840 841 /* get the command, unmap and queue for later processing */ 842 cm = sc->aac_commands + fib->Header.SenderData; 843 if (cm == NULL) { 844 AAC_PRINT_FIB(sc, fib); 845 break; 846 } 847 848 aac_remove_busy(cm); 849 aac_unmap_command(cm); /* XXX defer? */ 850 cm->cm_flags |= AAC_CMD_COMPLETED; 851 852 /* is there a completion handler? */ 853 if (cm->cm_complete != NULL) { 854 cm->cm_complete(cm); 855 } else { 856 /* assume that someone is sleeping on this command */ 857 wakeup(cm); 858 } 859 } 860 861 /* see if we can start some more I/O */ 862 aac_startio(sc); 863 864 AAC_LOCK_RELEASE(&sc->aac_io_lock); 865} 866 867/* 868 * Handle a bio submitted from a disk device. 869 */ 870void 871aac_submit_bio(struct bio *bp) 872{ 873 struct aac_disk *ad; 874 struct aac_softc *sc; 875 876 debug_called(2); 877 878 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 879 sc = ad->ad_controller; 880 881 /* queue the BIO and try to get some work done */ 882 aac_enqueue_bio(sc, bp); 883 aac_startio(sc); 884} 885 886/* 887 * Get a bio and build a command to go with it. 888 */ 889static int 890aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 891{ 892 struct aac_command *cm; 893 struct aac_fib *fib; 894 struct aac_disk *ad; 895 struct bio *bp; 896 897 debug_called(2); 898 899 /* get the resources we will need */ 900 cm = NULL; 901 if ((bp = aac_dequeue_bio(sc)) == NULL) 902 goto fail; 903 if (aac_alloc_command(sc, &cm)) /* get a command */ 904 goto fail; 905 906 /* fill out the command */ 907 cm->cm_data = (void *)bp->bio_data; 908 cm->cm_datalen = bp->bio_bcount; 909 cm->cm_complete = aac_bio_complete; 910 cm->cm_private = bp; 911 cm->cm_timestamp = time_second; 912 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 913 914 /* build the FIB */ 915 fib = cm->cm_fib; 916 fib->Header.Size = sizeof(struct aac_fib_header); 917 fib->Header.XferState = 918 AAC_FIBSTATE_HOSTOWNED | 919 AAC_FIBSTATE_INITIALISED | 920 AAC_FIBSTATE_EMPTY | 921 AAC_FIBSTATE_FROMHOST | 922 AAC_FIBSTATE_REXPECTED | 923 AAC_FIBSTATE_NORM | 924 AAC_FIBSTATE_ASYNC | 925 AAC_FIBSTATE_FAST_RESPONSE; 926 927 /* build the read/write request */ 928 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 929 930 if ((sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 931 fib->Header.Command = ContainerCommand; 932 if (bp->bio_cmd == BIO_READ) { 933 struct aac_blockread *br; 934 br = (struct aac_blockread *)&fib->data[0]; 935 br->Command = VM_CtBlockRead; 936 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 937 br->BlockNumber = bp->bio_pblkno; 938 br->ByteCount = bp->bio_bcount; 939 fib->Header.Size += sizeof(struct aac_blockread); 940 cm->cm_sgtable = &br->SgMap; 941 cm->cm_flags |= AAC_CMD_DATAIN; 942 } else { 943 struct aac_blockwrite *bw; 944 bw = (struct aac_blockwrite *)&fib->data[0]; 945 bw->Command = VM_CtBlockWrite; 946 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 947 bw->BlockNumber = bp->bio_pblkno; 948 bw->ByteCount = bp->bio_bcount; 949 bw->Stable = CUNSTABLE; 950 fib->Header.Size += sizeof(struct aac_blockwrite); 951 cm->cm_flags |= AAC_CMD_DATAOUT; 952 cm->cm_sgtable = &bw->SgMap; 953 } 954 } else { 955 fib->Header.Command = ContainerCommand64; 956 if (bp->bio_cmd == BIO_READ) { 957 struct aac_blockread64 *br; 958 br = (struct aac_blockread64 *)&fib->data[0]; 959 br->Command = VM_CtHostRead64; 960 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 961 br->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 962 br->BlockNumber = bp->bio_pblkno; 963 br->Pad = 0; 964 br->Flags = 0; 965 fib->Header.Size += sizeof(struct aac_blockread64); 966 cm->cm_flags |= AAC_CMD_DATAOUT; 967 (struct aac_sg_table64 *)cm->cm_sgtable = &br->SgMap64; 968 } else { 969 struct aac_blockwrite64 *bw; 970 bw = (struct aac_blockwrite64 *)&fib->data[0]; 971 bw->Command = VM_CtHostWrite64; 972 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 973 bw->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 974 bw->BlockNumber = bp->bio_pblkno; 975 bw->Pad = 0; 976 bw->Flags = 0; 977 fib->Header.Size += sizeof(struct aac_blockwrite64); 978 cm->cm_flags |= AAC_CMD_DATAIN; 979 (struct aac_sg_table64 *)cm->cm_sgtable = &bw->SgMap64; 980 } 981 } 982 983 *cmp = cm; 984 return(0); 985 986fail: 987 if (bp != NULL) 988 aac_enqueue_bio(sc, bp); 989 if (cm != NULL) 990 aac_release_command(cm); 991 return(ENOMEM); 992} 993 994/* 995 * Handle a bio-instigated command that has been completed. 996 */ 997static void 998aac_bio_complete(struct aac_command *cm) 999{ 1000 struct aac_blockread_response *brr; 1001 struct aac_blockwrite_response *bwr; 1002 struct bio *bp; 1003 AAC_FSAStatus status; 1004 1005 /* fetch relevant status and then release the command */ 1006 bp = (struct bio *)cm->cm_private; 1007 if (bp->bio_cmd == BIO_READ) { 1008 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1009 status = brr->Status; 1010 } else { 1011 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1012 status = bwr->Status; 1013 } 1014 aac_release_command(cm); 1015 1016 /* fix up the bio based on status */ 1017 if (status == ST_OK) { 1018 bp->bio_resid = 0; 1019 } else { 1020 bp->bio_error = EIO; 1021 bp->bio_flags |= BIO_ERROR; 1022 /* pass an error string out to the disk layer */ 1023 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1024 status); 1025 } 1026 aac_biodone(bp); 1027} 1028 1029/* 1030 * Submit a command to the controller, return when it completes. 1031 * XXX This is very dangerous! If the card has gone out to lunch, we could 1032 * be stuck here forever. At the same time, signals are not caught 1033 * because there is a risk that a signal could wakeup the tsleep before 1034 * the card has a chance to complete the command. The passed in timeout 1035 * is ignored for the same reason. Since there is no way to cancel a 1036 * command in progress, we should probably create a 'dead' queue where 1037 * commands go that have been interrupted/timed-out/etc, that keeps them 1038 * out of the free pool. That way, if the card is just slow, it won't 1039 * spam the memory of a command that has been recycled. 1040 */ 1041static int 1042aac_wait_command(struct aac_command *cm, int timeout) 1043{ 1044 struct aac_softc *sc; 1045 int error = 0; 1046 1047 debug_called(2); 1048 1049 sc = cm->cm_sc; 1050 1051 /* Put the command on the ready queue and get things going */ 1052 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1053 aac_enqueue_ready(cm); 1054 aac_startio(sc); 1055 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1056 error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacwait", 0); 1057 } 1058 return(error); 1059} 1060 1061/* 1062 *Command Buffer Management 1063 */ 1064 1065/* 1066 * Allocate a command. 1067 */ 1068int 1069aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1070{ 1071 struct aac_command *cm; 1072 1073 debug_called(3); 1074 1075 if ((cm = aac_dequeue_free(sc)) == NULL) { 1076 if (sc->total_fibs < sc->aac_max_fibs) { 1077 sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS; 1078 wakeup(sc->aifthread); 1079 } 1080 return (EBUSY); 1081 } 1082 1083 *cmp = cm; 1084 return(0); 1085} 1086 1087/* 1088 * Release a command back to the freelist. 1089 */ 1090void 1091aac_release_command(struct aac_command *cm) 1092{ 1093 debug_called(3); 1094 1095 /* (re)initialise the command/FIB */ 1096 cm->cm_sgtable = NULL; 1097 cm->cm_flags = 0; 1098 cm->cm_complete = NULL; 1099 cm->cm_private = NULL; 1100 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1101 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1102 cm->cm_fib->Header.Flags = 0; 1103 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1104 1105 /* 1106 * These are duplicated in aac_start to cover the case where an 1107 * intermediate stage may have destroyed them. They're left 1108 * initialised here for debugging purposes only. 1109 */ 1110 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1111 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1112 cm->cm_fib->Header.SenderData = 0; 1113 1114 aac_enqueue_free(cm); 1115} 1116 1117/* 1118 * Map helper for command/FIB allocation. 1119 */ 1120static void 1121aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1122{ 1123 uint32_t *fibphys; 1124 1125 fibphys = (uint32_t *)arg; 1126 1127 debug_called(3); 1128 1129 *fibphys = segs[0].ds_addr; 1130} 1131 1132/* 1133 * Allocate and initialise commands/FIBs for this adapter. 1134 */ 1135static int 1136aac_alloc_commands(struct aac_softc *sc) 1137{ 1138 struct aac_command *cm; 1139 struct aac_fibmap *fm; 1140 uint32_t fibphys; 1141 int i, error; 1142 1143 debug_called(2); 1144 1145 if (sc->total_fibs + AAC_FIB_COUNT > sc->aac_max_fibs) 1146 return (ENOMEM); 1147 1148 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1149 if (fm == NULL) 1150 return (ENOMEM); 1151 1152 /* allocate the FIBs in DMAable memory and load them */ 1153 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1154 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1155 device_printf(sc->aac_dev, 1156 "Not enough contiguous memory available.\n"); 1157 free(fm, M_AACBUF); 1158 return (ENOMEM); 1159 } 1160 1161 bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1162 AAC_FIB_COUNT * sizeof(struct aac_fib), 1163 aac_map_command_helper, &fibphys, 0); 1164 1165 /* initialise constant fields in the command structure */ 1166 bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1167 for (i = 0; i < AAC_FIB_COUNT; i++) { 1168 cm = sc->aac_commands + sc->total_fibs; 1169 fm->aac_commands = cm; 1170 cm->cm_sc = sc; 1171 cm->cm_fib = fm->aac_fibs + i; 1172 cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); 1173 cm->cm_index = sc->total_fibs; 1174 1175 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, 1176 &cm->cm_datamap)) == 0) 1177 aac_release_command(cm); 1178 else 1179 break; 1180 sc->total_fibs++; 1181 } 1182 1183 if (i > 0) { 1184 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); 1185 debug(1, "total_fibs= %d\n", sc->total_fibs); 1186 return (0); 1187 } 1188 1189 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1190 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1191 free(fm, M_AACBUF); 1192 return (ENOMEM); 1193} 1194 1195/* 1196 * Free FIBs owned by this adapter. 1197 */ 1198static void 1199aac_free_commands(struct aac_softc *sc) 1200{ 1201 struct aac_fibmap *fm; 1202 struct aac_command *cm; 1203 int i; 1204 1205 debug_called(1); 1206 1207 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1208 1209 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1210 /* 1211 * We check against total_fibs to handle partially 1212 * allocated blocks. 1213 */ 1214 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1215 cm = fm->aac_commands + i; 1216 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1217 } 1218 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1219 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1220 free(fm, M_AACBUF); 1221 } 1222} 1223 1224/* 1225 * Command-mapping helper function - populate this command's s/g table. 1226 */ 1227static void 1228aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1229{ 1230 struct aac_command *cm; 1231 struct aac_fib *fib; 1232 int i; 1233 1234 debug_called(3); 1235 1236 cm = (struct aac_command *)arg; 1237 fib = cm->cm_fib; 1238 1239 /* copy into the FIB */ 1240 if (cm->cm_sgtable != NULL) { 1241 if ((cm->cm_sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 1242 struct aac_sg_table *sg; 1243 sg = cm->cm_sgtable; 1244 sg->SgCount = nseg; 1245 for (i = 0; i < nseg; i++) { 1246 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1247 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1248 } 1249 /* update the FIB size for the s/g count */ 1250 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1251 } else { 1252 struct aac_sg_table64 *sg; 1253 sg = (struct aac_sg_table64 *)cm->cm_sgtable; 1254 sg->SgCount = nseg; 1255 for (i = 0; i < nseg; i++) { 1256 sg->SgEntry64[i].SgAddress = segs[i].ds_addr; 1257 sg->SgEntry64[i].SgByteCount = segs[i].ds_len; 1258 } 1259 /* update the FIB size for the s/g count */ 1260 fib->Header.Size += nseg*sizeof(struct aac_sg_entry64); 1261 } 1262 } 1263} 1264 1265/* 1266 * Map a command into controller-visible space. 1267 */ 1268static void 1269aac_map_command(struct aac_command *cm) 1270{ 1271 struct aac_softc *sc; 1272 1273 debug_called(2); 1274 1275 sc = cm->cm_sc; 1276 1277 /* don't map more than once */ 1278 if (cm->cm_flags & AAC_CMD_MAPPED) 1279 return; 1280 1281 if (cm->cm_datalen != 0) { 1282 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1283 cm->cm_data, cm->cm_datalen, 1284 aac_map_command_sg, cm, 0); 1285 1286 if (cm->cm_flags & AAC_CMD_DATAIN) 1287 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1288 BUS_DMASYNC_PREREAD); 1289 if (cm->cm_flags & AAC_CMD_DATAOUT) 1290 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1291 BUS_DMASYNC_PREWRITE); 1292 } 1293 cm->cm_flags |= AAC_CMD_MAPPED; 1294} 1295 1296/* 1297 * Unmap a command from controller-visible space. 1298 */ 1299static void 1300aac_unmap_command(struct aac_command *cm) 1301{ 1302 struct aac_softc *sc; 1303 1304 debug_called(2); 1305 1306 sc = cm->cm_sc; 1307 1308 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1309 return; 1310 1311 if (cm->cm_datalen != 0) { 1312 if (cm->cm_flags & AAC_CMD_DATAIN) 1313 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1314 BUS_DMASYNC_POSTREAD); 1315 if (cm->cm_flags & AAC_CMD_DATAOUT) 1316 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1317 BUS_DMASYNC_POSTWRITE); 1318 1319 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1320 } 1321 cm->cm_flags &= ~AAC_CMD_MAPPED; 1322} 1323 1324/* 1325 * Hardware Interface 1326 */ 1327 1328/* 1329 * Initialise the adapter. 1330 */ 1331static void 1332aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1333{ 1334 struct aac_softc *sc; 1335 1336 debug_called(1); 1337 1338 sc = (struct aac_softc *)arg; 1339 1340 sc->aac_common_busaddr = segs[0].ds_addr; 1341} 1342 1343static int 1344aac_check_firmware(struct aac_softc *sc) 1345{ 1346 u_int32_t major, minor, options; 1347 1348 debug_called(1); 1349 1350 /* 1351 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1352 * firmware version 1.x are not compatible with this driver. 1353 */ 1354 if (sc->flags & AAC_FLAGS_PERC2QC) { 1355 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1356 NULL)) { 1357 device_printf(sc->aac_dev, 1358 "Error reading firmware version\n"); 1359 return (EIO); 1360 } 1361 1362 /* These numbers are stored as ASCII! */ 1363 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1364 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1365 if (major == 1) { 1366 device_printf(sc->aac_dev, 1367 "Firmware version %d.%d is not supported.\n", 1368 major, minor); 1369 return (EINVAL); 1370 } 1371 } 1372 1373 /* 1374 * Retrieve the capabilities/supported options word so we know what 1375 * work-arounds to enable. 1376 */ 1377 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1378 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1379 return (EIO); 1380 } 1381 options = AAC_GET_MAILBOX(sc, 1); 1382 sc->supported_options = options; 1383 1384 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1385 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1386 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1387 if (options & AAC_SUPPORTED_NONDASD) 1388 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1389 if ((options & AAC_SUPPORTED_SGMAP_HOST64) != 0 && (sizeof(bus_addr_t) > 4)) { 1390 device_printf(sc->aac_dev, "Enabling 64-bit address support\n"); 1391 sc->flags |= AAC_FLAGS_SG_64BIT; 1392 } 1393 1394 /* Check for broken hardware that does a lower number of commands */ 1395 if ((sc->flags & AAC_FLAGS_256FIBS) == 0) 1396 sc->aac_max_fibs = AAC_MAX_FIBS; 1397 else 1398 sc->aac_max_fibs = 256; 1399 1400 return (0); 1401} 1402 1403static int 1404aac_init(struct aac_softc *sc) 1405{ 1406 struct aac_adapter_init *ip; 1407 time_t then; 1408 u_int32_t code; 1409 u_int8_t *qaddr; 1410 int error; 1411 1412 debug_called(1); 1413 1414 /* 1415 * First wait for the adapter to come ready. 1416 */ 1417 then = time_second; 1418 do { 1419 code = AAC_GET_FWSTATUS(sc); 1420 if (code & AAC_SELF_TEST_FAILED) { 1421 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1422 return(ENXIO); 1423 } 1424 if (code & AAC_KERNEL_PANIC) { 1425 device_printf(sc->aac_dev, 1426 "FATAL: controller kernel panic\n"); 1427 return(ENXIO); 1428 } 1429 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1430 device_printf(sc->aac_dev, 1431 "FATAL: controller not coming ready, " 1432 "status %x\n", code); 1433 return(ENXIO); 1434 } 1435 } while (!(code & AAC_UP_AND_RUNNING)); 1436 1437 error = ENOMEM; 1438 /* 1439 * Create DMA tag for mapping buffers into controller-addressable space. 1440 */ 1441 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1442 1, 0, /* algnmnt, boundary */ 1443 (sc->flags & AAC_FLAGS_SG_64BIT) ? 1444 BUS_SPACE_MAXADDR : 1445 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1446 BUS_SPACE_MAXADDR, /* highaddr */ 1447 NULL, NULL, /* filter, filterarg */ 1448 MAXBSIZE, /* maxsize */ 1449 AAC_MAXSGENTRIES, /* nsegments */ 1450 MAXBSIZE, /* maxsegsize */ 1451 BUS_DMA_ALLOCNOW, /* flags */ 1452 busdma_lock_mutex, /* lockfunc */ 1453 &sc->aac_io_lock, /* lockfuncarg */ 1454 &sc->aac_buffer_dmat)) { 1455 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 1456 goto out; 1457 } 1458 1459 /* 1460 * Create DMA tag for mapping FIBs into controller-addressable space.. 1461 */ 1462 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1463 1, 0, /* algnmnt, boundary */ 1464 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1465 BUS_SPACE_MAXADDR_32BIT : 1466 0x7fffffff, /* lowaddr */ 1467 BUS_SPACE_MAXADDR, /* highaddr */ 1468 NULL, NULL, /* filter, filterarg */ 1469 AAC_FIB_COUNT * 1470 sizeof(struct aac_fib), /* maxsize */ 1471 1, /* nsegments */ 1472 AAC_FIB_COUNT * 1473 sizeof(struct aac_fib), /* maxsegsize */ 1474 BUS_DMA_ALLOCNOW, /* flags */ 1475 NULL, NULL, /* No locking needed */ 1476 &sc->aac_fib_dmat)) { 1477 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");; 1478 goto out; 1479 } 1480 1481 /* 1482 * Create DMA tag for the common structure and allocate it. 1483 */ 1484 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1485 1, 0, /* algnmnt, boundary */ 1486 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1487 BUS_SPACE_MAXADDR_32BIT : 1488 0x7fffffff, /* lowaddr */ 1489 BUS_SPACE_MAXADDR, /* highaddr */ 1490 NULL, NULL, /* filter, filterarg */ 1491 8192 + sizeof(struct aac_common), /* maxsize */ 1492 1, /* nsegments */ 1493 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1494 BUS_DMA_ALLOCNOW, /* flags */ 1495 NULL, NULL, /* No locking needed */ 1496 &sc->aac_common_dmat)) { 1497 device_printf(sc->aac_dev, 1498 "can't allocate common structure DMA tag\n"); 1499 goto out; 1500 } 1501 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1502 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1503 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1504 goto out; 1505 } 1506 1507 /* 1508 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1509 * below address 8192 in physical memory. 1510 * XXX If the padding is not needed, can it be put to use instead 1511 * of ignored? 1512 */ 1513 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1514 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1515 aac_common_map, sc, 0); 1516 1517 if (sc->aac_common_busaddr < 8192) { 1518 (uint8_t *)sc->aac_common += 8192; 1519 sc->aac_common_busaddr += 8192; 1520 } 1521 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1522 1523 /* Allocate some FIBs and associated command structs */ 1524 TAILQ_INIT(&sc->aac_fibmap_tqh); 1525 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1526 M_AACBUF, M_WAITOK|M_ZERO); 1527 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1528 if (aac_alloc_commands(sc) != 0) 1529 break; 1530 } 1531 if (sc->total_fibs == 0) 1532 goto out; 1533 1534 /* 1535 * Fill in the init structure. This tells the adapter about the 1536 * physical location of various important shared data structures. 1537 */ 1538 ip = &sc->aac_common->ac_init; 1539 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1540 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1541 1542 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1543 offsetof(struct aac_common, ac_fibs); 1544 ip->AdapterFibsVirtualAddress = 0; 1545 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1546 ip->AdapterFibAlign = sizeof(struct aac_fib); 1547 1548 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1549 offsetof(struct aac_common, ac_printf); 1550 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1551 1552 /* 1553 * The adapter assumes that pages are 4K in size, except on some 1554 * broken firmware versions that do the page->byte conversion twice, 1555 * therefore 'assuming' that this value is in 16MB units (2^24). 1556 * Round up since the granularity is so high. 1557 */ 1558 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1559 if (sc->flags & AAC_FLAGS_BROKEN_MEMMAP) { 1560 ip->HostPhysMemPages = 1561 (ip->HostPhysMemPages + AAC_PAGE_SIZE) / AAC_PAGE_SIZE; 1562 } 1563 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1564 1565 /* 1566 * Initialise FIB queues. Note that it appears that the layout of the 1567 * indexes and the segmentation of the entries may be mandated by the 1568 * adapter, which is only told about the base of the queue index fields. 1569 * 1570 * The initial values of the indices are assumed to inform the adapter 1571 * of the sizes of the respective queues, and theoretically it could 1572 * work out the entire layout of the queue structures from this. We 1573 * take the easy route and just lay this area out like everyone else 1574 * does. 1575 * 1576 * The Linux driver uses a much more complex scheme whereby several 1577 * header records are kept for each queue. We use a couple of generic 1578 * list manipulation functions which 'know' the size of each list by 1579 * virtue of a table. 1580 */ 1581 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1582 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1583 sc->aac_queues = (struct aac_queue_table *)qaddr; 1584 ip->CommHeaderAddress = sc->aac_common_busaddr + 1585 ((u_int32_t)sc->aac_queues - 1586 (u_int32_t)sc->aac_common); 1587 1588 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1589 AAC_HOST_NORM_CMD_ENTRIES; 1590 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1591 AAC_HOST_NORM_CMD_ENTRIES; 1592 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1593 AAC_HOST_HIGH_CMD_ENTRIES; 1594 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1595 AAC_HOST_HIGH_CMD_ENTRIES; 1596 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1597 AAC_ADAP_NORM_CMD_ENTRIES; 1598 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1599 AAC_ADAP_NORM_CMD_ENTRIES; 1600 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1601 AAC_ADAP_HIGH_CMD_ENTRIES; 1602 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1603 AAC_ADAP_HIGH_CMD_ENTRIES; 1604 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1605 AAC_HOST_NORM_RESP_ENTRIES; 1606 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1607 AAC_HOST_NORM_RESP_ENTRIES; 1608 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1609 AAC_HOST_HIGH_RESP_ENTRIES; 1610 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1611 AAC_HOST_HIGH_RESP_ENTRIES; 1612 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1613 AAC_ADAP_NORM_RESP_ENTRIES; 1614 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1615 AAC_ADAP_NORM_RESP_ENTRIES; 1616 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1617 AAC_ADAP_HIGH_RESP_ENTRIES; 1618 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1619 AAC_ADAP_HIGH_RESP_ENTRIES; 1620 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1621 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1622 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1623 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1624 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1625 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1626 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1627 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1628 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1629 &sc->aac_queues->qt_HostNormRespQueue[0]; 1630 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1631 &sc->aac_queues->qt_HostHighRespQueue[0]; 1632 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1633 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1634 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1635 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1636 1637 /* 1638 * Do controller-type-specific initialisation 1639 */ 1640 switch (sc->aac_hwif) { 1641 case AAC_HWIF_I960RX: 1642 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1643 break; 1644 } 1645 1646 /* 1647 * Give the init structure to the controller. 1648 */ 1649 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1650 sc->aac_common_busaddr + 1651 offsetof(struct aac_common, ac_init), 0, 0, 0, 1652 NULL)) { 1653 device_printf(sc->aac_dev, 1654 "error establishing init structure\n"); 1655 error = EIO; 1656 goto out; 1657 } 1658 1659 error = 0; 1660out: 1661 return(error); 1662} 1663 1664/* 1665 * Send a synchronous command to the controller and wait for a result. 1666 */ 1667static int 1668aac_sync_command(struct aac_softc *sc, u_int32_t command, 1669 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1670 u_int32_t *sp) 1671{ 1672 time_t then; 1673 u_int32_t status; 1674 1675 debug_called(3); 1676 1677 /* populate the mailbox */ 1678 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1679 1680 /* ensure the sync command doorbell flag is cleared */ 1681 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1682 1683 /* then set it to signal the adapter */ 1684 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1685 1686 /* spin waiting for the command to complete */ 1687 then = time_second; 1688 do { 1689 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1690 debug(1, "timed out"); 1691 return(EIO); 1692 } 1693 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1694 1695 /* clear the completion flag */ 1696 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1697 1698 /* get the command status */ 1699 status = AAC_GET_MAILBOX(sc, 0); 1700 if (sp != NULL) 1701 *sp = status; 1702 return(0); 1703} 1704 1705/* 1706 * Grab the sync fib area. 1707 */ 1708int 1709aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1710{ 1711 1712 /* 1713 * If the force flag is set, the system is shutting down, or in 1714 * trouble. Ignore the mutex. 1715 */ 1716 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1717 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1718 1719 *fib = &sc->aac_common->ac_sync_fib; 1720 1721 return (1); 1722} 1723 1724/* 1725 * Release the sync fib area. 1726 */ 1727void 1728aac_release_sync_fib(struct aac_softc *sc) 1729{ 1730 1731 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1732} 1733 1734/* 1735 * Send a synchronous FIB to the controller and wait for a result. 1736 */ 1737int 1738aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1739 struct aac_fib *fib, u_int16_t datasize) 1740{ 1741 debug_called(3); 1742 1743 if (datasize > AAC_FIB_DATASIZE) 1744 return(EINVAL); 1745 1746 /* 1747 * Set up the sync FIB 1748 */ 1749 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1750 AAC_FIBSTATE_INITIALISED | 1751 AAC_FIBSTATE_EMPTY; 1752 fib->Header.XferState |= xferstate; 1753 fib->Header.Command = command; 1754 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1755 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1756 fib->Header.SenderSize = sizeof(struct aac_fib); 1757 fib->Header.SenderFibAddress = (u_int32_t)fib; 1758 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1759 offsetof(struct aac_common, 1760 ac_sync_fib); 1761 1762 /* 1763 * Give the FIB to the controller, wait for a response. 1764 */ 1765 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1766 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1767 debug(2, "IO error"); 1768 return(EIO); 1769 } 1770 1771 return (0); 1772} 1773 1774/* 1775 * Adapter-space FIB queue manipulation 1776 * 1777 * Note that the queue implementation here is a little funky; neither the PI or 1778 * CI will ever be zero. This behaviour is a controller feature. 1779 */ 1780static struct { 1781 int size; 1782 int notify; 1783} aac_qinfo[] = { 1784 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1785 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1786 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1787 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1788 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1789 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1790 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1791 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1792}; 1793 1794/* 1795 * Atomically insert an entry into the nominated queue, returns 0 on success or 1796 * EBUSY if the queue is full. 1797 * 1798 * Note: it would be more efficient to defer notifying the controller in 1799 * the case where we may be inserting several entries in rapid succession, 1800 * but implementing this usefully may be difficult (it would involve a 1801 * separate queue/notify interface). 1802 */ 1803static int 1804aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1805{ 1806 u_int32_t pi, ci; 1807 int error; 1808 u_int32_t fib_size; 1809 u_int32_t fib_addr; 1810 1811 debug_called(3); 1812 1813 fib_size = cm->cm_fib->Header.Size; 1814 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1815 1816 /* get the producer/consumer indices */ 1817 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1818 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1819 1820 /* wrap the queue? */ 1821 if (pi >= aac_qinfo[queue].size) 1822 pi = 0; 1823 1824 /* check for queue full */ 1825 if ((pi + 1) == ci) { 1826 error = EBUSY; 1827 goto out; 1828 } 1829 1830 /* populate queue entry */ 1831 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1832 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1833 1834 /* update producer index */ 1835 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1836 1837 /* 1838 * To avoid a race with its completion interrupt, place this command on 1839 * the busy queue prior to advertising it to the controller. 1840 */ 1841 aac_enqueue_busy(cm); 1842 1843 /* notify the adapter if we know how */ 1844 if (aac_qinfo[queue].notify != 0) 1845 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1846 1847 error = 0; 1848 1849out: 1850 return(error); 1851} 1852 1853/* 1854 * Atomically remove one entry from the nominated queue, returns 0 on 1855 * success or ENOENT if the queue is empty. 1856 */ 1857static int 1858aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1859 struct aac_fib **fib_addr) 1860{ 1861 u_int32_t pi, ci; 1862 u_int32_t fib_index; 1863 int error; 1864 int notify; 1865 1866 debug_called(3); 1867 1868 /* get the producer/consumer indices */ 1869 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1870 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1871 1872 /* check for queue empty */ 1873 if (ci == pi) { 1874 error = ENOENT; 1875 goto out; 1876 } 1877 1878 notify = 0; 1879 if (ci == pi + 1) 1880 notify++; 1881 1882 /* wrap the queue? */ 1883 if (ci >= aac_qinfo[queue].size) 1884 ci = 0; 1885 1886 /* fetch the entry */ 1887 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1888 1889 switch (queue) { 1890 case AAC_HOST_NORM_CMD_QUEUE: 1891 case AAC_HOST_HIGH_CMD_QUEUE: 1892 /* 1893 * The aq_fib_addr is only 32 bits wide so it can't be counted 1894 * on to hold an address. For AIF's, the adapter assumes 1895 * that it's giving us an address into the array of AIF fibs. 1896 * Therefore, we have to convert it to an index. 1897 */ 1898 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr / 1899 sizeof(struct aac_fib); 1900 *fib_addr = &sc->aac_common->ac_fibs[fib_index]; 1901 break; 1902 1903 case AAC_HOST_NORM_RESP_QUEUE: 1904 case AAC_HOST_HIGH_RESP_QUEUE: 1905 { 1906 struct aac_command *cm; 1907 1908 /* 1909 * As above, an index is used instead of an actual address. 1910 * Gotta shift the index to account for the fast response 1911 * bit. No other correction is needed since this value was 1912 * originally provided by the driver via the SenderFibAddress 1913 * field. 1914 */ 1915 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr; 1916 cm = sc->aac_commands + (fib_index >> 1); 1917 *fib_addr = cm->cm_fib; 1918 1919 /* 1920 * Is this a fast response? If it is, update the fib fields in 1921 * local memory since the whole fib isn't DMA'd back up. 1922 */ 1923 if (fib_index & 0x01) { 1924 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1925 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1926 } 1927 break; 1928 } 1929 default: 1930 panic("Invalid queue in aac_dequeue_fib()"); 1931 break; 1932 } 1933 1934 /* update consumer index */ 1935 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1936 1937 /* if we have made the queue un-full, notify the adapter */ 1938 if (notify && (aac_qinfo[queue].notify != 0)) 1939 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1940 error = 0; 1941 1942out: 1943 return(error); 1944} 1945 1946/* 1947 * Put our response to an Adapter Initialed Fib on the response queue 1948 */ 1949static int 1950aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1951{ 1952 u_int32_t pi, ci; 1953 int error; 1954 u_int32_t fib_size; 1955 u_int32_t fib_addr; 1956 1957 debug_called(1); 1958 1959 /* Tell the adapter where the FIB is */ 1960 fib_size = fib->Header.Size; 1961 fib_addr = fib->Header.SenderFibAddress; 1962 fib->Header.ReceiverFibAddress = fib_addr; 1963 1964 /* get the producer/consumer indices */ 1965 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1966 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1967 1968 /* wrap the queue? */ 1969 if (pi >= aac_qinfo[queue].size) 1970 pi = 0; 1971 1972 /* check for queue full */ 1973 if ((pi + 1) == ci) { 1974 error = EBUSY; 1975 goto out; 1976 } 1977 1978 /* populate queue entry */ 1979 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1980 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1981 1982 /* update producer index */ 1983 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1984 1985 /* notify the adapter if we know how */ 1986 if (aac_qinfo[queue].notify != 0) 1987 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1988 1989 error = 0; 1990 1991out: 1992 return(error); 1993} 1994 1995/* 1996 * Check for commands that have been outstanding for a suspiciously long time, 1997 * and complain about them. 1998 */ 1999static void 2000aac_timeout(struct aac_softc *sc) 2001{ 2002 struct aac_command *cm; 2003 time_t deadline; 2004 2005 /* 2006 * Traverse the busy command list, bitch about late commands once 2007 * only. 2008 */ 2009 deadline = time_second - AAC_CMD_TIMEOUT; 2010 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 2011 if ((cm->cm_timestamp < deadline) 2012 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 2013 cm->cm_flags |= AAC_CMD_TIMEDOUT; 2014 device_printf(sc->aac_dev, 2015 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 2016 cm, (int)(time_second-cm->cm_timestamp)); 2017 AAC_PRINT_FIB(sc, cm->cm_fib); 2018 } 2019 } 2020 2021 return; 2022} 2023 2024/* 2025 * Interface Function Vectors 2026 */ 2027 2028/* 2029 * Read the current firmware status word. 2030 */ 2031static int 2032aac_sa_get_fwstatus(struct aac_softc *sc) 2033{ 2034 debug_called(3); 2035 2036 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2037} 2038 2039static int 2040aac_rx_get_fwstatus(struct aac_softc *sc) 2041{ 2042 debug_called(3); 2043 2044 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2045} 2046 2047static int 2048aac_fa_get_fwstatus(struct aac_softc *sc) 2049{ 2050 int val; 2051 2052 debug_called(3); 2053 2054 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2055 return (val); 2056} 2057 2058/* 2059 * Notify the controller of a change in a given queue 2060 */ 2061 2062static void 2063aac_sa_qnotify(struct aac_softc *sc, int qbit) 2064{ 2065 debug_called(3); 2066 2067 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2068} 2069 2070static void 2071aac_rx_qnotify(struct aac_softc *sc, int qbit) 2072{ 2073 debug_called(3); 2074 2075 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2076} 2077 2078static void 2079aac_fa_qnotify(struct aac_softc *sc, int qbit) 2080{ 2081 debug_called(3); 2082 2083 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2084 AAC_FA_HACK(sc); 2085} 2086 2087/* 2088 * Get the interrupt reason bits 2089 */ 2090static int 2091aac_sa_get_istatus(struct aac_softc *sc) 2092{ 2093 debug_called(3); 2094 2095 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2096} 2097 2098static int 2099aac_rx_get_istatus(struct aac_softc *sc) 2100{ 2101 debug_called(3); 2102 2103 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2104} 2105 2106static int 2107aac_fa_get_istatus(struct aac_softc *sc) 2108{ 2109 int val; 2110 2111 debug_called(3); 2112 2113 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2114 return (val); 2115} 2116 2117/* 2118 * Clear some interrupt reason bits 2119 */ 2120static void 2121aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2122{ 2123 debug_called(3); 2124 2125 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2126} 2127 2128static void 2129aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2130{ 2131 debug_called(3); 2132 2133 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2134} 2135 2136static void 2137aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2138{ 2139 debug_called(3); 2140 2141 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2142 AAC_FA_HACK(sc); 2143} 2144 2145/* 2146 * Populate the mailbox and set the command word 2147 */ 2148static void 2149aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2150 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2151{ 2152 debug_called(4); 2153 2154 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2155 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2156 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2157 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2158 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2159} 2160 2161static void 2162aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2163 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2164{ 2165 debug_called(4); 2166 2167 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2168 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2169 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2170 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2171 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2172} 2173 2174static void 2175aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2176 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2177{ 2178 debug_called(4); 2179 2180 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2181 AAC_FA_HACK(sc); 2182 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2183 AAC_FA_HACK(sc); 2184 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2185 AAC_FA_HACK(sc); 2186 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2187 AAC_FA_HACK(sc); 2188 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2189 AAC_FA_HACK(sc); 2190} 2191 2192/* 2193 * Fetch the immediate command status word 2194 */ 2195static int 2196aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2197{ 2198 debug_called(4); 2199 2200 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2201} 2202 2203static int 2204aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2205{ 2206 debug_called(4); 2207 2208 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2209} 2210 2211static int 2212aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2213{ 2214 int val; 2215 2216 debug_called(4); 2217 2218 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2219 return (val); 2220} 2221 2222/* 2223 * Set/clear interrupt masks 2224 */ 2225static void 2226aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2227{ 2228 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2229 2230 if (enable) { 2231 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2232 } else { 2233 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2234 } 2235} 2236 2237static void 2238aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2239{ 2240 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2241 2242 if (enable) { 2243 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2244 } else { 2245 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2246 } 2247} 2248 2249static void 2250aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2251{ 2252 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2253 2254 if (enable) { 2255 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2256 AAC_FA_HACK(sc); 2257 } else { 2258 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2259 AAC_FA_HACK(sc); 2260 } 2261} 2262 2263/* 2264 * Debugging and Diagnostics 2265 */ 2266 2267/* 2268 * Print some information about the controller. 2269 */ 2270static void 2271aac_describe_controller(struct aac_softc *sc) 2272{ 2273 struct aac_fib *fib; 2274 struct aac_adapter_info *info; 2275 2276 debug_called(2); 2277 2278 aac_alloc_sync_fib(sc, &fib, 0); 2279 2280 fib->data[0] = 0; 2281 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2282 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2283 aac_release_sync_fib(sc); 2284 return; 2285 } 2286 info = (struct aac_adapter_info *)&fib->data[0]; 2287 2288 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2289 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2290 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2291 aac_describe_code(aac_battery_platform, 2292 info->batteryPlatform)); 2293 2294 /* save the kernel revision structure for later use */ 2295 sc->aac_revision = info->KernelRevision; 2296 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2297 info->KernelRevision.external.comp.major, 2298 info->KernelRevision.external.comp.minor, 2299 info->KernelRevision.external.comp.dash, 2300 info->KernelRevision.buildNumber, 2301 (u_int32_t)(info->SerialNumber & 0xffffff)); 2302 2303 aac_release_sync_fib(sc); 2304 2305 if (1 || bootverbose) { 2306 device_printf(sc->aac_dev, "Supported Options=%b\n", 2307 sc->supported_options, 2308 "\20" 2309 "\1SNAPSHOT" 2310 "\2CLUSTERS" 2311 "\3WCACHE" 2312 "\4DATA64" 2313 "\5HOSTTIME" 2314 "\6RAID50" 2315 "\7WINDOW4GB" 2316 "\10SCSIUPGD" 2317 "\11SOFTERR" 2318 "\12NORECOND" 2319 "\13SGMAP64" 2320 "\14ALARM" 2321 "\15NONDASD"); 2322 } 2323} 2324 2325/* 2326 * Look up a text description of a numeric error code and return a pointer to 2327 * same. 2328 */ 2329static char * 2330aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2331{ 2332 int i; 2333 2334 for (i = 0; table[i].string != NULL; i++) 2335 if (table[i].code == code) 2336 return(table[i].string); 2337 return(table[i + 1].string); 2338} 2339 2340/* 2341 * Management Interface 2342 */ 2343 2344static int 2345aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2346{ 2347 struct aac_softc *sc; 2348 2349 debug_called(2); 2350 2351 sc = dev->si_drv1; 2352 2353 /* Check to make sure the device isn't already open */ 2354 if (sc->aac_state & AAC_STATE_OPEN) { 2355 return EBUSY; 2356 } 2357 sc->aac_state |= AAC_STATE_OPEN; 2358 2359 return 0; 2360} 2361 2362static int 2363aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2364{ 2365 struct aac_softc *sc; 2366 2367 debug_called(2); 2368 2369 sc = dev->si_drv1; 2370 2371 /* Mark this unit as no longer open */ 2372 sc->aac_state &= ~AAC_STATE_OPEN; 2373 2374 return 0; 2375} 2376 2377static int 2378aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2379{ 2380 union aac_statrequest *as; 2381 struct aac_softc *sc; 2382 int error = 0; 2383 int i; 2384 2385 debug_called(2); 2386 2387 as = (union aac_statrequest *)arg; 2388 sc = dev->si_drv1; 2389 2390 switch (cmd) { 2391 case AACIO_STATS: 2392 switch (as->as_item) { 2393 case AACQ_FREE: 2394 case AACQ_BIO: 2395 case AACQ_READY: 2396 case AACQ_BUSY: 2397 case AACQ_COMPLETE: 2398 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2399 sizeof(struct aac_qstat)); 2400 break; 2401 default: 2402 error = ENOENT; 2403 break; 2404 } 2405 break; 2406 2407 case FSACTL_SENDFIB: 2408 arg = *(caddr_t*)arg; 2409 case FSACTL_LNX_SENDFIB: 2410 debug(1, "FSACTL_SENDFIB"); 2411 error = aac_ioctl_sendfib(sc, arg); 2412 break; 2413 case FSACTL_AIF_THREAD: 2414 case FSACTL_LNX_AIF_THREAD: 2415 debug(1, "FSACTL_AIF_THREAD"); 2416 error = EINVAL; 2417 break; 2418 case FSACTL_OPEN_GET_ADAPTER_FIB: 2419 arg = *(caddr_t*)arg; 2420 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2421 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2422 /* 2423 * Pass the caller out an AdapterFibContext. 2424 * 2425 * Note that because we only support one opener, we 2426 * basically ignore this. Set the caller's context to a magic 2427 * number just in case. 2428 * 2429 * The Linux code hands the driver a pointer into kernel space, 2430 * and then trusts it when the caller hands it back. Aiee! 2431 * Here, we give it the proc pointer of the per-adapter aif 2432 * thread. It's only used as a sanity check in other calls. 2433 */ 2434 i = (int)sc->aifthread; 2435 error = copyout(&i, arg, sizeof(i)); 2436 break; 2437 case FSACTL_GET_NEXT_ADAPTER_FIB: 2438 arg = *(caddr_t*)arg; 2439 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2440 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2441 error = aac_getnext_aif(sc, arg); 2442 break; 2443 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2444 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2445 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2446 /* don't do anything here */ 2447 break; 2448 case FSACTL_MINIPORT_REV_CHECK: 2449 arg = *(caddr_t*)arg; 2450 case FSACTL_LNX_MINIPORT_REV_CHECK: 2451 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2452 error = aac_rev_check(sc, arg); 2453 break; 2454 case FSACTL_QUERY_DISK: 2455 arg = *(caddr_t*)arg; 2456 case FSACTL_LNX_QUERY_DISK: 2457 debug(1, "FSACTL_QUERY_DISK"); 2458 error = aac_query_disk(sc, arg); 2459 break; 2460 case FSACTL_DELETE_DISK: 2461 case FSACTL_LNX_DELETE_DISK: 2462 /* 2463 * We don't trust the underland to tell us when to delete a 2464 * container, rather we rely on an AIF coming from the 2465 * controller 2466 */ 2467 error = 0; 2468 break; 2469 default: 2470 debug(1, "unsupported cmd 0x%lx\n", cmd); 2471 error = EINVAL; 2472 break; 2473 } 2474 return(error); 2475} 2476 2477static int 2478aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2479{ 2480 struct aac_softc *sc; 2481 int revents; 2482 2483 sc = dev->si_drv1; 2484 revents = 0; 2485 2486 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2487 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2488 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2489 revents |= poll_events & (POLLIN | POLLRDNORM); 2490 } 2491 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2492 2493 if (revents == 0) { 2494 if (poll_events & (POLLIN | POLLRDNORM)) 2495 selrecord(td, &sc->rcv_select); 2496 } 2497 2498 return (revents); 2499} 2500 2501/* 2502 * Send a FIB supplied from userspace 2503 */ 2504static int 2505aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2506{ 2507 struct aac_command *cm; 2508 int size, error; 2509 2510 debug_called(2); 2511 2512 cm = NULL; 2513 2514 /* 2515 * Get a command 2516 */ 2517 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 2518 if (aac_alloc_command(sc, &cm)) { 2519 error = EBUSY; 2520 goto out; 2521 } 2522 2523 /* 2524 * Fetch the FIB header, then re-copy to get data as well. 2525 */ 2526 if ((error = copyin(ufib, cm->cm_fib, 2527 sizeof(struct aac_fib_header))) != 0) 2528 goto out; 2529 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2530 if (size > sizeof(struct aac_fib)) { 2531 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2532 size, sizeof(struct aac_fib)); 2533 size = sizeof(struct aac_fib); 2534 } 2535 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2536 goto out; 2537 cm->cm_fib->Header.Size = size; 2538 cm->cm_timestamp = time_second; 2539 2540 /* 2541 * Pass the FIB to the controller, wait for it to complete. 2542 */ 2543 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2544 device_printf(sc->aac_dev, 2545 "aac_wait_command return %d\n", error); 2546 goto out; 2547 } 2548 2549 /* 2550 * Copy the FIB and data back out to the caller. 2551 */ 2552 size = cm->cm_fib->Header.Size; 2553 if (size > sizeof(struct aac_fib)) { 2554 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2555 size, sizeof(struct aac_fib)); 2556 size = sizeof(struct aac_fib); 2557 } 2558 error = copyout(cm->cm_fib, ufib, size); 2559 2560out: 2561 if (cm != NULL) { 2562 aac_release_command(cm); 2563 } 2564 2565 AAC_LOCK_RELEASE(&sc->aac_io_lock); 2566 return(error); 2567} 2568 2569/* 2570 * Handle an AIF sent to us by the controller; queue it for later reference. 2571 * If the queue fills up, then drop the older entries. 2572 */ 2573static void 2574aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2575{ 2576 struct aac_aif_command *aif; 2577 struct aac_container *co, *co_next; 2578 struct aac_mntinfo *mi; 2579 struct aac_mntinforesp *mir = NULL; 2580 u_int16_t rsize; 2581 int next, found; 2582 int count = 0, added = 0, i = 0; 2583 2584 debug_called(2); 2585 2586 aif = (struct aac_aif_command*)&fib->data[0]; 2587 aac_print_aif(sc, aif); 2588 2589 /* Is it an event that we should care about? */ 2590 switch (aif->command) { 2591 case AifCmdEventNotify: 2592 switch (aif->data.EN.type) { 2593 case AifEnAddContainer: 2594 case AifEnDeleteContainer: 2595 /* 2596 * A container was added or deleted, but the message 2597 * doesn't tell us anything else! Re-enumerate the 2598 * containers and sort things out. 2599 */ 2600 aac_alloc_sync_fib(sc, &fib, 0); 2601 mi = (struct aac_mntinfo *)&fib->data[0]; 2602 do { 2603 /* 2604 * Ask the controller for its containers one at 2605 * a time. 2606 * XXX What if the controller's list changes 2607 * midway through this enumaration? 2608 * XXX This should be done async. 2609 */ 2610 bzero(mi, sizeof(struct aac_mntinfo)); 2611 mi->Command = VM_NameServe; 2612 mi->MntType = FT_FILESYS; 2613 mi->MntCount = i; 2614 rsize = sizeof(mir); 2615 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2616 sizeof(struct aac_mntinfo))) { 2617 printf("Error probing container %d\n", 2618 i); 2619 continue; 2620 } 2621 mir = (struct aac_mntinforesp *)&fib->data[0]; 2622 /* XXX Need to check if count changed */ 2623 count = mir->MntRespCount; 2624 /* 2625 * Check the container against our list. 2626 * co->co_found was already set to 0 in a 2627 * previous run. 2628 */ 2629 if ((mir->Status == ST_OK) && 2630 (mir->MntTable[0].VolType != CT_NONE)) { 2631 found = 0; 2632 TAILQ_FOREACH(co, 2633 &sc->aac_container_tqh, 2634 co_link) { 2635 if (co->co_mntobj.ObjectId == 2636 mir->MntTable[0].ObjectId) { 2637 co->co_found = 1; 2638 found = 1; 2639 break; 2640 } 2641 } 2642 /* 2643 * If the container matched, continue 2644 * in the list. 2645 */ 2646 if (found) { 2647 i++; 2648 continue; 2649 } 2650 2651 /* 2652 * This is a new container. Do all the 2653 * appropriate things to set it up. 2654 */ 2655 aac_add_container(sc, mir, 1); 2656 added = 1; 2657 } 2658 i++; 2659 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2660 aac_release_sync_fib(sc); 2661 2662 /* 2663 * Go through our list of containers and see which ones 2664 * were not marked 'found'. Since the controller didn't 2665 * list them they must have been deleted. Do the 2666 * appropriate steps to destroy the device. Also reset 2667 * the co->co_found field. 2668 */ 2669 co = TAILQ_FIRST(&sc->aac_container_tqh); 2670 while (co != NULL) { 2671 if (co->co_found == 0) { 2672 device_delete_child(sc->aac_dev, 2673 co->co_disk); 2674 co_next = TAILQ_NEXT(co, co_link); 2675 AAC_LOCK_ACQUIRE(&sc-> 2676 aac_container_lock); 2677 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2678 co_link); 2679 AAC_LOCK_RELEASE(&sc-> 2680 aac_container_lock); 2681 FREE(co, M_AACBUF); 2682 co = co_next; 2683 } else { 2684 co->co_found = 0; 2685 co = TAILQ_NEXT(co, co_link); 2686 } 2687 } 2688 2689 /* Attach the newly created containers */ 2690 if (added) 2691 bus_generic_attach(sc->aac_dev); 2692 2693 break; 2694 2695 default: 2696 break; 2697 } 2698 2699 default: 2700 break; 2701 } 2702 2703 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2704 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2705 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2706 if (next != sc->aac_aifq_tail) { 2707 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2708 sc->aac_aifq_head = next; 2709 2710 /* On the off chance that someone is sleeping for an aif... */ 2711 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2712 wakeup(sc->aac_aifq); 2713 /* Wakeup any poll()ers */ 2714 selwakeup(&sc->rcv_select); 2715 } 2716 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2717 2718 return; 2719} 2720 2721/* 2722 * Return the Revision of the driver to userspace and check to see if the 2723 * userspace app is possibly compatible. This is extremely bogus since 2724 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2725 * returning what the card reported. 2726 */ 2727static int 2728aac_rev_check(struct aac_softc *sc, caddr_t udata) 2729{ 2730 struct aac_rev_check rev_check; 2731 struct aac_rev_check_resp rev_check_resp; 2732 int error = 0; 2733 2734 debug_called(2); 2735 2736 /* 2737 * Copyin the revision struct from userspace 2738 */ 2739 if ((error = copyin(udata, (caddr_t)&rev_check, 2740 sizeof(struct aac_rev_check))) != 0) { 2741 return error; 2742 } 2743 2744 debug(2, "Userland revision= %d\n", 2745 rev_check.callingRevision.buildNumber); 2746 2747 /* 2748 * Doctor up the response struct. 2749 */ 2750 rev_check_resp.possiblyCompatible = 1; 2751 rev_check_resp.adapterSWRevision.external.ul = 2752 sc->aac_revision.external.ul; 2753 rev_check_resp.adapterSWRevision.buildNumber = 2754 sc->aac_revision.buildNumber; 2755 2756 return(copyout((caddr_t)&rev_check_resp, udata, 2757 sizeof(struct aac_rev_check_resp))); 2758} 2759 2760/* 2761 * Pass the caller the next AIF in their queue 2762 */ 2763static int 2764aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2765{ 2766 struct get_adapter_fib_ioctl agf; 2767 int error; 2768 2769 debug_called(2); 2770 2771 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2772 2773 /* 2774 * Check the magic number that we gave the caller. 2775 */ 2776 if (agf.AdapterFibContext != (int)sc->aifthread) { 2777 error = EFAULT; 2778 } else { 2779 error = aac_return_aif(sc, agf.AifFib); 2780 if ((error == EAGAIN) && (agf.Wait)) { 2781 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2782 while (error == EAGAIN) { 2783 error = tsleep(sc->aac_aifq, PRIBIO | 2784 PCATCH, "aacaif", 0); 2785 if (error == 0) 2786 error = aac_return_aif(sc, 2787 agf.AifFib); 2788 } 2789 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2790 } 2791 } 2792 } 2793 return(error); 2794} 2795 2796/* 2797 * Hand the next AIF off the top of the queue out to userspace. 2798 */ 2799static int 2800aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2801{ 2802 int error; 2803 2804 debug_called(2); 2805 2806 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2807 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2808 error = EAGAIN; 2809 } else { 2810 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2811 sizeof(struct aac_aif_command)); 2812 if (error) 2813 device_printf(sc->aac_dev, 2814 "aac_return_aif: copyout returned %d\n", error); 2815 if (!error) 2816 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2817 AAC_AIFQ_LENGTH; 2818 } 2819 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2820 return(error); 2821} 2822 2823/* 2824 * Give the userland some information about the container. The AAC arch 2825 * expects the driver to be a SCSI passthrough type driver, so it expects 2826 * the containers to have b:t:l numbers. Fake it. 2827 */ 2828static int 2829aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2830{ 2831 struct aac_query_disk query_disk; 2832 struct aac_container *co; 2833 struct aac_disk *disk; 2834 int error, id; 2835 2836 debug_called(2); 2837 2838 disk = NULL; 2839 2840 error = copyin(uptr, (caddr_t)&query_disk, 2841 sizeof(struct aac_query_disk)); 2842 if (error) 2843 return (error); 2844 2845 id = query_disk.ContainerNumber; 2846 if (id == -1) 2847 return (EINVAL); 2848 2849 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2850 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2851 if (co->co_mntobj.ObjectId == id) 2852 break; 2853 } 2854 2855 if (co == NULL) { 2856 query_disk.Valid = 0; 2857 query_disk.Locked = 0; 2858 query_disk.Deleted = 1; /* XXX is this right? */ 2859 } else { 2860 disk = device_get_softc(co->co_disk); 2861 query_disk.Valid = 1; 2862 query_disk.Locked = 2863 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2864 query_disk.Deleted = 0; 2865 query_disk.Bus = device_get_unit(sc->aac_dev); 2866 query_disk.Target = disk->unit; 2867 query_disk.Lun = 0; 2868 query_disk.UnMapped = 0; 2869 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2870 disk->ad_disk.d_name, disk->ad_disk.d_unit); 2871 } 2872 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2873 2874 error = copyout((caddr_t)&query_disk, uptr, 2875 sizeof(struct aac_query_disk)); 2876 2877 return (error); 2878} 2879 2880static void 2881aac_get_bus_info(struct aac_softc *sc) 2882{ 2883 struct aac_fib *fib; 2884 struct aac_ctcfg *c_cmd; 2885 struct aac_ctcfg_resp *c_resp; 2886 struct aac_vmioctl *vmi; 2887 struct aac_vmi_businf_resp *vmi_resp; 2888 struct aac_getbusinf businfo; 2889 struct aac_sim *caminf; 2890 device_t child; 2891 int i, found, error; 2892 2893 aac_alloc_sync_fib(sc, &fib, 0); 2894 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2895 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2896 2897 c_cmd->Command = VM_ContainerConfig; 2898 c_cmd->cmd = CT_GET_SCSI_METHOD; 2899 c_cmd->param = 0; 2900 2901 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2902 sizeof(struct aac_ctcfg)); 2903 if (error) { 2904 device_printf(sc->aac_dev, "Error %d sending " 2905 "VM_ContainerConfig command\n", error); 2906 aac_release_sync_fib(sc); 2907 return; 2908 } 2909 2910 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2911 if (c_resp->Status != ST_OK) { 2912 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2913 c_resp->Status); 2914 aac_release_sync_fib(sc); 2915 return; 2916 } 2917 2918 sc->scsi_method_id = c_resp->param; 2919 2920 vmi = (struct aac_vmioctl *)&fib->data[0]; 2921 bzero(vmi, sizeof(struct aac_vmioctl)); 2922 2923 vmi->Command = VM_Ioctl; 2924 vmi->ObjType = FT_DRIVE; 2925 vmi->MethId = sc->scsi_method_id; 2926 vmi->ObjId = 0; 2927 vmi->IoctlCmd = GetBusInfo; 2928 2929 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2930 sizeof(struct aac_vmioctl)); 2931 if (error) { 2932 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2933 error); 2934 aac_release_sync_fib(sc); 2935 return; 2936 } 2937 2938 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2939 if (vmi_resp->Status != ST_OK) { 2940 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2941 vmi_resp->Status); 2942 aac_release_sync_fib(sc); 2943 return; 2944 } 2945 2946 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2947 aac_release_sync_fib(sc); 2948 2949 found = 0; 2950 for (i = 0; i < businfo.BusCount; i++) { 2951 if (businfo.BusValid[i] != AAC_BUS_VALID) 2952 continue; 2953 2954 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2955 M_AACBUF, M_NOWAIT | M_ZERO); 2956 if (caminf == NULL) 2957 continue; 2958 2959 child = device_add_child(sc->aac_dev, "aacp", -1); 2960 if (child == NULL) { 2961 device_printf(sc->aac_dev, "device_add_child failed\n"); 2962 continue; 2963 } 2964 2965 caminf->TargetsPerBus = businfo.TargetsPerBus; 2966 caminf->BusNumber = i; 2967 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2968 caminf->aac_sc = sc; 2969 caminf->sim_dev = child; 2970 2971 device_set_ivars(child, caminf); 2972 device_set_desc(child, "SCSI Passthrough Bus"); 2973 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2974 2975 found = 1; 2976 } 2977 2978 if (found) 2979 bus_generic_attach(sc->aac_dev); 2980 2981 return; 2982} 2983